Design of A Digital-Password-Lock in VHDL Language
Abstract: The major functions of Digital-Password-Lock are locking, password entry, password verification, opening the locks, password changes, and so on. The circuit-design of the Digital-Password-Lock mainly includes eleven modules, every module is designed by VHDL language, and is simulated in the environment of MAX+PLUSⅡ.Finally, the circuit is simulated in the environment of MAX+PLUSⅡ, and the results show that the design meets the target, all of the digital logic functions are used in the CPLD device VHDL language to achieve, them with alarm, lock and reset functions. This design has a convenient debugging , fault rate is low and the advantages of low prices.
Key words: VHDL; Digital-Password-Lock; Design; MAX+PLUSⅡ
